Rex Hall Jr. / Kalamazoo GazetteDorleen Ryder, 61, of Portage, was ejected from her car and critically injured Saturday after being run off U.S. 131 by Dodge Caravan driven by a 29-year-old Mattawan woman who then fled the scene, police say.

Deputies found the woman, a 29-year-old Mattawan resident, at about 10 p.m. Saturday, about six hours after she is suspected of crashing her 2001 Dodge Caravan into the rear end of a 1991 Ford Tempo that was driven by Dorleen Ryder, 61, of Portage. After the collision on southbound U.S. 131, which occurred just before 4 p.m, the Tempo went off the west shoulder of the highway, rolled over and Ryder was ejected.

Ryder was critically injured in the crash and taken to Bronson Methodist Hospital in Kalamazoo. She was listed in critical condition at the hospital Monday morning, Kalamazoo County Undersheriff Pali Matyas said.

Matyas said the Caravan's driver was interviewed Saturday and her van was seized and impounded by police. The woman was not arrested. Matyas said deputies are continuing to investigate and plan to submit their case for review to the Kalamazoo County Prosecutor's Office when it is completed.

“We suspect alcohol was a factor, but to what extent we're hoping that the investigation will help us in that area,” Matyas said of the minivan's driver.